diff --git a/python/tests/test_ConfigMaterial.py b/python/tests/test_ConfigMaterial.py
index ea6beae13..f8dfa1079 100644
--- a/python/tests/test_ConfigMaterial.py
+++ b/python/tests/test_ConfigMaterial.py
@@ -41,6 +41,7 @@ class TestConfigMaterial:
         material_config['material'][0]['constituents'][0]['O']=[0,0,0,0]
         assert not material_config.is_valid
 
+    @pytest.mark.xfail(sys.platform == 'win32', reason='utf8 "not equal" might cause trouble')
     def test_invalid_fraction(self,ref_path):
         material_config = ConfigMaterial.load(ref_path/'material.yaml')
         material_config['material'][0]['constituents'][0]['v']=.9
diff --git a/python/tests/test_Result.py b/python/tests/test_Result.py
index 9124cff99..9cc8f5643 100644
--- a/python/tests/test_Result.py
+++ b/python/tests/test_Result.py
@@ -108,7 +108,7 @@ class TestResult:
         assert np.allclose(in_memory,in_file)
 
     @pytest.mark.parametrize('mode',
-        ['direct',pytest.param('function',marks=pytest.mark.xfail(sys.platform=='darwin',reason='n/a'))])
+        ['direct',pytest.param('function',marks=pytest.mark.xfail(sys.platform in ['darwin','win32'], reason='n/a'))])
     def test_add_calculation(self,default,tmp_path,mode):
 
         if mode == 'direct':
diff --git a/python/tests/test_util.py b/python/tests/test_util.py
index 637d09753..ec547e6d2 100644
--- a/python/tests/test_util.py
+++ b/python/tests/test_util.py
@@ -1,5 +1,5 @@
+import sys
 import random
-import os
 
 import pytest
 import numpy as np
@@ -11,14 +11,17 @@ from damask import util
 
 class TestUtil:
 
+    @pytest.mark.xfail(sys.platform == 'win32', reason='echo is not a Windows command')
     def test_execute_direct(self):
         out,err = util.execute('echo test')
         assert out=='test\n' and err==''
 
+    @pytest.mark.xfail(sys.platform == 'win32', reason='echo is not a Windows command')
     def test_execute_env(self):
         out,err = util.execute('sh -c "echo $test_for_execute"',env={'test_for_execute':'test'})
         assert out=='test\n' and err==''
 
+    @pytest.mark.xfail(sys.platform == 'win32', reason='false is not a Windows command')
     def test_execute_runtime_error(self):
         with pytest.raises(RuntimeError):
             util.execute('false')